Exercise balance bar



FIG. 1 is a perspective view of an exercise balance bar showing my new design;

FIG. 2 is a top plan thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a first end elevational view thereof;

FIG. 5 is second end elevational view thereof;

FIG. 6 is a left side elevational view thereof; and,

FIG. 7 is bottom plan view thereof. 

The ornamental design for an exercise balance bar, as shown and described. 